Oral cavity scalpel

Abstract

The utility model discloses an oral cavity scalpel, and relates to the field of medical surgical instruments. In order to solve the problem that instruments block the view of an operator and visually improve the fineness of an operation, the utility model designs an oral cavity scalpel which is mainly structurally characterized in that an operating handle and a blade are connected through an operating rod with a multi-stage three-dimensional bending structure, so that the operation can be conveniently carried out in a complex environment in the oral cavity, and the operation is convenient. Meanwhile, important anatomical structures can be better avoided; a blade clamping groove and a magnetic layer are arranged, so that the blade is convenient to mount and dismount; the holding handle is a cylindrical handle with anti-skid textures, so that an operator can conveniently hold, control and adjust the cutting-in and separating direction and angle of the blade; the scale marks which are parallel to the blade and have the interval of 1mm are arranged, so that a doctor is visually and accurately helped to determine the depth of the blade cutting into tissues; the oral cavity scalpel is easy and convenient to operate, and the using effect can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the field of medical surgical instruments, in particular to an oral surgical knife. Background Art

[0002] Most of the existing conventional surgical operating handles are flat and have a certain grip, but the flat handle is not conducive to the fine control of the blade rotation angle; and when cutting denser tissues (such as the keratinized mucosa of the upper palate), it is not conducive to gripping and exerting force, which increases the surgical risk to a certain extent. The blade of a conventional scalpel is parallel to the grip handle, and the blade angle depends entirely on the operator's grip adjustment; for the complex environment in the oral cavity, the straight instrument design is easily blocked by anatomical structures such as teeth, buccal mucosa, and tongue, increasing the complexity of the surgical operation. In addition, the obstruction of surrounding anatomical structures will also affect the operator's surgical operation; due to the limited position of the operator and patient during the operation, in the case of a narrow operating space, the hand holding the instrument may block the surgical area, increase the blind spot of the field of vision, and affect the surgical effect. This is more obvious in straight instruments.

[0003] Patent publication number CN211213402U discloses an oral surgical knife, comprising a handle and a blade, wherein the blade is mounted at the front end of the handle, and the handle is designed in a curved shape so that the edge surface of the blade and the axis of the handle form an angle.

[0004] However, the curved blade handle of the utility model has a relatively simple curvature and curvature, and the blade needs to be disassembled and reinstalled when the installation direction thereof needs to be adjusted. Utility Model Content

[0005] In view of the above problems, the technical ideas adopted by the utility model to solve the technical problems are:

[0006] A multi-level three-dimensional curved operating rod is designed between the operating handle and the blade, which is convenient for use in the complex environment inside the oral cavity; a blade slot and a magnetic layer are designed to facilitate the installation and removal of the blade; scale lines parallel to the blade are set at the blade, and the area between the 1-2mm scale lines is black, which is convenient for intuitive judgment and control of the incision depth during surgery.

[0007] The specific plan is as follows:

[0008] An oral surgical knife comprises an operating handle, a blade and an operating rod; the operating rod is in a "ל" shape; one end of the operating rod is connected to the operating handle, and the other end is connected to the blade; the operating rod comprises a first rod segment, a second rod segment and a third rod segment, wherein the first rod segment and the second rod segment form a 90-150 degree angle; the second rod segment and the third rod segment form a 90-120 degree angle.

[0009] Furthermore, a blade slot is provided at the end of the third rod segment.

[0010] According to the above scheme, a further preferred scheme is that the left side of the blade slot is a short slot, and the right side is a long slot; and a magnetic layer is built-in at the end of the third rod segment near the short slot of the blade slot.

[0011] In order to realize the above scheme, another preferred scheme is that the edge of the blade of the blade is provided with scale lines parallel to the blade; the scale lines are spaced 1 mm apart, and the area between 1 mm and 2 mm is black.

[0012] Furthermore, the operating handle is cylindrical and has an anti-slip texture.

[0013] By adopting the above technical solution, the utility model has the following technical effects:

[0014] The cylindrical operating handle is convenient for rotation during holding, and the blade angle can be flexibly and precisely controlled; the operating handle has an anti-slip texture, which increases the stability of holding and is convenient for exerting force during operation; the operating handle and the blade are connected by an operating rod with a multi-level three-dimensional curved structure, which is convenient for use in the complex environment of the oral cavity, avoiding surrounding anatomical structures and simplifying surgical operations; at the same time, since the blade and the operating handle have a certain angle, the operator's hand and the operating handle are prevented from blocking the blade during the surgical operation, the blind spot of the field of vision is eliminated, and the safety of the operation is increased; scale lines with an interval of 1mm parallel to the blade are set at the blade, and the area between the 1-2mm scale lines is black, which is convenient for intuitive judgment and control of the incision depth during the operation, and provides instrument support for improving the precision of the operation; the blade is installed by using a blade slot and a magnetic layer, which is convenient for disassembly and convenient for selecting a suitable blade model according to actual conditions, while avoiding possible damage to the blade caused by cleaning and disinfection, thereby reducing costs; the oral scalpel of the utility model is simple and convenient to operate, and can effectively improve the use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings used in the embodiments are briefly introduced below.

[0016] Figure 1 It is an overall diagram of the utility model;

[0017] Figure 2 is a schematic diagram of the operating lever;

[0018] Figure 3 yes Figure 2 The perspective view at A in the middle;

[0019] Figure 4 is a schematic diagram of the blade;

[0020] Figure 5It is a schematic diagram of the installation of the blade and the blade slot;

[0021] Icons: 1. Operating handle; 2. Operating rod; 21. First rod section; 22. Second rod section; 23. Third rod section; 231. Blade slot; 232. Magnetic layer; 3. 15C blade; 4. 12D blade. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the following will be combined with the appended Figure 1-5 , the technical solutions in the embodiments of the present application are described clearly and completely. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments.

[0023] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0024] In the description of the present application, it should be noted that the terms "center", "up", "down", "vertical", "horizontal", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the products of the application are usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0025] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connected" and "connected" should be understood in a broad sense.

[0026] Example

[0027] The inventors have found that during surgery, the surgeon and the patient are restricted in their positions. In the case of a narrow operating space, the instruments held and the hands holding the instruments may block the surgical area, increase the blind area of ​​the visual field, and affect the surgical effect. This is more obvious in straight instruments.

[0028] Reference Figure 1-5 As shown, the present application provides an oral surgical knife, comprising an operating handle 1, a blade and an operating rod 2;

[0029] In the above technical solution, the operating handle 1 is in the shape of a solid cylinder, 100 mm long and 9-10 mm in diameter, which is convenient for rotation during holding and flexible and precise control of the blade angle; an anti-slip texture is provided at the finger gripping position on the outer wall of the operating handle to increase the holding stability and facilitate the exertion of force during operation; the side of the operating handle close to the anti-slip texture is bent inward to increase the operator's field of view;

[0030] Furthermore, the operating rod 2 is in the shape of a multi-stage three-dimensional curved structure, one side is a truncated cone with a diameter of 7 mm, and the other side is a first rod segment 21, a second rod segment 22 and a third rod segment 23 with a diameter of 5 mm welded from top to bottom in sequence; the small mouth end of the operating handle that is bent inward is welded with one side of the truncated cone end of the operating rod, which is convenient for use in the complex environment of the oral cavity, avoiding the surrounding anatomical structures, and simplifying the surgical operation;

[0031] Preferably, the other side of the truncated cone end is welded to the first rod segment, and the first rod segment 21, the second rod segment 22 and the third rod segment 23 are integrally formed; and the first rod segment and the second rod segment form 90-150 degrees, and the second rod segment and the third rod segment form 90-120 degrees.

[0032] It is worth noting that blade slots 231 are provided on the left and right sides of the end of the third rod segment. The depth of the long slot of the blade slot is twice that of the short slot. The depth of the short slot is the vertical distance from the edge of the blade width to the widest part of the central slot of the blade. The long slot and the short slot are parallel on one side close to the truncated cone end. Both the long slot and the short slot are 1mm wide. A 1mm thick magnetic layer 232 is built into the side of the third rod segment close to the short slot for adsorbing and fixing the blade for easy installation and removal.

[0033] Specifically, the operating handle 1 and the operating rod 2 are made of the same material, stainless steel, and are integrally formed;

[0034] It should be noted that the blades are disposable consumables, and the commonly used specifications are 15C blade 3 and 12D blade 4;

[0035] What is particularly important is that when using it, insert the side of the blade away from the blade vertically into the long slot, adjust the blade angle, move it into the short slot and fix it with magnets; the bottom of the short slot engages with the hollow area of ​​the blade to enhance its stability;

[0036] The blade and the operating handle are at a certain angle to prevent the operator's hand and the operating handle from blocking the blade during the operation, eliminating the blind spot and increasing the safety of the operation.

[0037] Optimally, the blade is provided with scale lines with intervals of 1mm parallel to the blade, and the area between the 1-2mm scale lines is black, which is convenient for intuitive judgment and control of incision depth during surgery, and provides instrumental support for improving surgical precision;

[0038] Operation process: Before the operation, insert the blade into the blade slot 231 and fix it by magnetic attraction; after the operation, remove the blade and disinfect the operating handle 1 and the operating rod 2.

[0039] Application Cases

[0040] Application scenario 1: Free soft tissue harvesting from the posterior part of the upper palate.

[0041] The extraction and transplantation of free soft tissue (such as free gingiva, free connective tissue, etc.) is a common operation in oral implant and gingival surgery. The posterior area of ​​the upper palate corresponding to the bilateral upper posterior teeth is one of the most commonly used soft tissue donor areas. When it is necessary to extract and trim free soft tissue, the instrument can be held in a pen-like manner. The multi-section curved operating rod can effectively avoid structures such as teeth, while preventing the operator's hands from blocking the surgical area, increasing the convenience of surgical operation; the keratinized mucosa of the upper palate is relatively dense, and the operating handle with a non-slip texture facilitates appropriate force during operation. During operation, use the blade end of this patent to cut the appropriate soft tissue graft shape at the appropriate position. During the process, the operator can judge and control the cutting depth in real time and accurately according to the scale line (depth indicator line) of the blade to avoid the soft tissue graft being too thin or too thick. After the appropriate shape is cut, the surgeon adjusts the angle of the instrument, inserts the blade into the cutting area, and uses the cylindrical operating handle to complete the cutting operation. The surgeon can conveniently and flexibly control and adjust the blade angle to achieve the expected thickness distribution of the free soft tissue. Afterwards, the surgeon can use this patent to further trim the free soft tissue according to the actual needs of the operation.

[0042] Application scenario 2: When performing surgery with an internal oblique incision as the main incision design

[0043] The internal oblique incision is a commonly used incision design for dental surgery. By cutting at a certain distance from the root of the natural gingival margin at a specific angle, the excess and over-thick gingiva can be trimmed, thereby providing a more suitable soft tissue foundation for subsequent surgical operations and restorative treatments. When making an internal oblique incision, the surgeon holds this patented device in a pen-like manner and uses the depth indicator line at the blade position to intuitively and in real time judge the distance between the incision and the gingival margin, which can effectively assist the surgeon in reproducing the preoperative surgical design plan; through the angle between the connecting handle at the blade end and the long axis of the tooth, the surgeon can flexibly adjust the blade angle thanks to the cylindrical operating handle; at the same time, the existing angle between the blade and the grip handle keeps the surgeon's hand away from the surgical area, allowing the surgeon to conveniently see and judge and control the surgical instrument.

[0044] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An oral surgical knife, comprising an operating handle (1) and a blade; characterized in that: It also includes an operating rod (2), which is shape; One end of the operating rod (2) is connected to the operating handle (1), and the other end is connected to the blade; The operating rod comprises a first rod section (21), a second rod section (22) and a third rod section (23); The first rod segment and the second rod segment form an angle of 90-150 degrees; The second rod segment and the third rod segment form an angle of 90-120 degrees.

2. An oral surgical knife according to claim 1, characterized in that: A blade clamping slot (231) is provided at the end of the third rod segment.

3. An oral surgical knife according to claim 2, characterized in that: The blade slot (231) has a short slot on the left side and a long slot on the right side.

4. An oral surgical knife according to claim 3, characterized in that: A magnetic layer (232) is built into the end of the third rod segment (23) on one side of the short slot close to the blade clamping slot (231).

5. An oral surgical knife according to claim 1, characterized in that: The edge of the blade of the knife is provided with a scale line parallel to the blade.

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